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Asparagine functional group

Asparagine and glutamine methylation are certainly unexpected. The carboxamido functional group is not known for its nucleophilicity, but nature has created pathways that can overcome low nucleophilicity of... [Pg.445]

Asparagine (Asn or N) ((2S )-2-amino-3-carbamoyl-propanoic acid) is a polar, uncharged amino acid with the formula HOOCCH(NH2)CH2CONH2. It has a carboxamide as the side chain s functional group. Asx or B represent either Asn or Asp. Asn are often found near the beginning and end of alpha-helices, and in turn motifs in beta sheets. ... [Pg.672]

We found that the color yielded for primary alkyl amine positive tests is strongly influenced by the presence of other functional groups. Specifically we could not establish a clear positive for arginine, asparagine, and cysteine when their lateral chains were deprotected. A similar effect was observed in the case of secondary amines or sterically hindered amines such as Aib. [Pg.26]

In terms of the reactions themselves, there are several areas that are likely to see improvement. First, there are still many native functional groups for which reliable modification strategies are yet to be developed (including disulfides, asparagines (potentially allowing an efficient synthesis of N-linked glycoproteins), and methionines). Secondly, many bioconjugation reactions currently in use do not reach full conversion in a reasonable period of time. [Pg.627]

The presence of polar functional groups in the side chains of a-amino acids is expected to increase dramatically the number of low-energy conformers. The functional group can establish additional interactions, which do not occur in other a-amino acids previously studied, and thus may affect the conformational preferences giving rise to a rich conformational space. The conformational behavior of serine [60], cysteine [134], threonine [61], aspartic acid [135], glutamic acid [67], and asparagine [136] have been revealed using LA-MB-FTMW spectroscopy. A summary of the results is collected in Table 3. The analysis of threonine... [Pg.360]

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See also in sourсe #XX -- [ Pg.1078 ]



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Asparagin

Asparagine

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